描述

E642B-MGB-K-01

.PLC的發(fā)展趨勢(shì)
目前，全世界約有PLC生產(chǎn)廠家約200家，生產(chǎn)300多個(gè)品種。全球PLC發(fā)運(yùn)件數(shù)1998年為1456萬件，1999年為1620萬件，2000年達(dá)到1778萬件。在1995年發(fā)運(yùn)的PLC中，按最終用戶分：汽車占23%；糧食加工占16.4%：化藥占14.6%；金屬、礦山占11.5%；紙漿、造紙占11.3%；其他占23.2%。由于CIMS、工程自動(dòng)化和過程控制等大系統(tǒng)和復(fù)雜的應(yīng)用要求，PLC主要發(fā)展趨勢(shì)為：
(1)發(fā)展方向?yàn)楦吖δ?、高速度和大容量，形成與DCS相抗?fàn)幍拇笙到y(tǒng)。
(2)網(wǎng)絡(luò)化和強(qiáng)化通信能力是PLC重要發(fā)展方向。網(wǎng)絡(luò)動(dòng)態(tài)化已經(jīng)很成功，并注意到現(xiàn)場(chǎng)總線的發(fā)展。
(3)編程語言多樣化：
1) SFC因有不少優(yōu)點(diǎn)而成為編程語言的一個(gè)重要發(fā)展方向。
2) 大型PLC正越來越多地使用C、BASIC等高級(jí)語言編程。
3) 采用多種語言聯(lián)合編程。
(4)PLC和其他工控機(jī)聯(lián)合，PLC和其他控制系統(tǒng)之間界限越來越模糊，在應(yīng)用方向也出現(xiàn)了類似的情況。最流行的向PC技術(shù)融合，PLC日益加速滲入到DCS中，PLC CNC的領(lǐng)地。PLC自身控制也分散化。相對(duì)PC為基礎(chǔ)的控制器，優(yōu)勢(shì)在小型PLC上。

產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢(shì)價(jià)格，大量現(xiàn)貨。

主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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Mitsubishi A Ser. A1SD59J-S2 Memmorycard I/ F Unit New

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Navitar Precise Eye & EIA CCD Camera & Power Supply LNC

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SIGMA KOKI XYZ LINEAR STAGE & MICROMETER NICE!!!

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Siemens Simatic S7 6ES7 153-1AA03-0XB0 New! “FS”

Eurotherm SSD Link Dijital I / P A-H Module L5209-2-01

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OMRON ANALOG OUTPUT CQM1-DA021 CQM1DA021 NEW! ( NIB )

Hewlett Packard LSC3300 / C8 14 Pin DIL Uncooled Laser

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Hewlett Packard PDC1299-181-BT/?A1 DIL Uncooled Laser

Advantest Hand Held Program ” Used ”

INFICON CRYSTAL INTERFACE UNIT IPN 760-600-G1

NEW! MITSUBISHI MELSEC AOJ2 – E24R, AOJ2E24R NIB!

New Omron C200HE – CPU11 C200HECPU11 CPU NIB!

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MITSUBISHI AJ65SBTB1-32T CC LINK OUTPUT UNIT NEW!

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KEYENCE BL – 601 BARCODE READER

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Hayashi Fiber Optic Light Guide 3 Way LNC!

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SUNX DP-101 DIJITAL PRESSURE SENSOR NIB

New OMRON CS1W-II102 I/O Interface Unit Offer!

DEL-TRON Positioning Stage LS3-1 Nice !!!

NIB Keyence FS-V12 Sensor Photoelectric Amplifier

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OMRON PHOTOELECTRIC SWITCH E3JK – R4M1 NEW!!!!

OMRON PHOTOELECTRIC SWITCH E3JK – R4M2 NEW!!!!

Keyence BL-U2 Power Supply / RS232 9PIN CONNECTOR NEW

SUNX S-Link Terminal Output Terminal SL-TBP16 Nice!

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